Method of making fireproof material.



l No. 841,749.

J. R. @L WELLS.

-lsrlehmm) JAN. 22, 1907 MBTHoD 0F Mums PRBPRooE mnumAL.l APPLIGTIO FILED SEPT. 19. 1906.

l /4 III/z1- 1 f iran srii'rns essere eiseres.'

JAMES e. WELLS AND ALBEarWnLLs, or Karren, onio. l METHQD 0F MAKING FlREPR'QGF hiili'l'liari ne. 841,749. i

Specication. of Letters Patent.

atented Jan. T32, lim?.

To 11,55 whom tm/tgl concern:

Be it known that we, JAMES R. WELLS and Animar WnLLs, residing at Kenton, in the county of Hardin and State of Ohio, have invented a new and im roved Method of Making Fireproof Materia of which the following is a specification.

Our invention seeks to provide a new 'and improved method for economically and effectively manufacturing an improved fire# proof material of rigid character suitable for use as a lining for banks, vaults, inside fireproof walls, flue-lining or stove-lining, and the like, and it comorehends a method here inafter fully descri ed, specifically pointed .out in the appended claims, and illustrated in the accompanyingy drawings, in which--a Figure his a perspective view of a plate or section of iireproof material made in accordM ance with our invention. Fig. 2 is a detail .View which illustrates the initial step of our improved method. Fig. 3 is a transverse section 'taken on the line 3 3 oni? 2. Fig. 4- is a detail view'that illustrates the second step of our method or process of making fireproof material. Fig. 5 is a transverse section on the line 5 5 on Fig. 4. Fig. 6 is a longitudinal section of' the mold members, being in position for 'effecting the third step of our method or process. Fig. 7 is'. a transverse section thereof.' Fig. 8 is a longitudinal section, and Fig. 9 a transverse section,'of the .mold and illustrating the members in position for eifecting the final step of our process.

Figs. 10 and 11 are views that illustrate the different shapes of molds that maybe used in the manufacture of our form of iireproof material. Brieiiy stated, the article )reduced byY our method and means is a solidified iireproof -materialwfor example, asbestos and clay having a central metallic reinforce, preferably ofmeshed Wire.

.In the practical application of our method the first step We employ is to support the inetallic reinforce (the meshed-wire frame) flatwise upon or up against the solid flat base and then spread upon or against the. wire frame a coating of suitable thickness of the fire-proof compound, preferably asbestos and clay, in a semiplast-ic condition, and then hold the same until it isset, and after the same is set to an even. layer or thickness throught 1 t, but before it is throughly dried, the said set composition,l with the wire body uppermost,. is heid upon or against a solid base and anmy and ease of manipulation We prefer toV employ a special means illustrated in the accompanying;` drawings, the construction of' which and the manner of operation thereof being best explained as follows: By refe1 ing to Fig. 2 1t will be noticed that we use a removable top board or mold'pieee l, which' has its sides and ends on one iace oi' less thickness than the remainder, whereby .the raised face l() is provided ina plane above the side and end portions of the top face a distance approximately equal to onc-haif of the 'thickness of the. materi l or product to he made, ,Whereas the other orback face iis. uniformly flat throughout. The dep s. d Side and end portions oi the board i .term seats to receive a rectangular frame 12, which may be a rigid frame or may he a post ofremovable side and end battons. 'These battens or frame members are of a thickness equal that of the thickness of the product to be ma de, aswill be clearly understood by rei? erence toiiigs. 2 and 3, from vwhich it will be noticed that the wire frame is first laid open on a fiat base or mold member l between the end and side portions on the 'frame t2. F

fireproof-material compound in a plastic con vspace within the frame Alfter the said filling is set, but before it is solidified, a hot@ tom mold-piece 3 is placed over the frame 2, and the said frame 2 and mold-piece 3 are turned over, then held on a suitable support. andthe mold-piece l is removed. 'The n-nwleft within the frame and above the wire face of the partially-set composition is now filled with the lireproof compound until the space Within the fra-ine is filled, after which the mold-piece "or member l is reversed and held upon the frame. 2, with its hack or fiat side against the lining portion of the compound filled Within the fran-ie 2. The mold can now be placed, if desired, under pressure by suitable means, and thus held until the composition, with'thewire located in# the middle thereof, has become thoroughly 

